CVE-2024-40963

Summary

In the Linux kernel, the following vulnerability has been resolved:

mips: bmips: BCM6358: make sure CBR is correctly set

It was discovered that some device have CBR address set to 0 causing kernel panic when arch_sync_dma_for_cpu_all is called.

This was notice in situation where the system is booted from TP1 and BMIPS_GET_CBR() returns 0 instead of a valid address and !!(read_c0_brcm_cmt_local() & (1 << 31)); not failing.

The current check whether RAC flush should be disabled or not are not enough hence lets check if CBR is a valid address or not.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd65de5ee8b72868fbbbd39ca73017d0e526fa13a < 10afe5f7d30f6fe50c2b1177549d0e04921fc373affected
LinuxLinux47a449ec09b4479b89dcc6b27ec3829fc82ffafb < 36d771ce6028b886e18a4a8956a5d23688e4e13daffected
LinuxLinux65b723644294f1d79770704162c0e8d1f700b6f1 < 89167072fd249e5f23ae2f8093f87da5925cef27affected
LinuxLinux2cdbcff99f15db86a10672fb220379a1ae46ccae < 6c0f6ccd939166f56a904c792d7fcadae43b9085affected
LinuxLinuxab327f8acdf8d06601fbf058859a539a9422afff < 2cd4854ef14a487bcfb76c7980675980cad27b52affected
LinuxLinuxab327f8acdf8d06601fbf058859a539a9422afff < da895fd6da438af8d9326b8f02d715a9c76c3b5baffected
LinuxLinuxab327f8acdf8d06601fbf058859a539a9422afff < ce5cdd3b05216b704a704f466fb4c2dff3778cafaffected
LinuxLinux288c96aa5b5526cd4a946e84ef85e165857693b5affected
LinuxLinux5.4.240 < 5.4.279affected
LinuxLinux5.10.177 < 5.10.221affected
LinuxLinux5.15.106 < 5.15.162affected
LinuxLinux6.1.23 < 6.1.96affected
LinuxLinux6.2.10 < 6.3affected
LinuxLinux6.3affected
LinuxLinux0 < 6.3unaffected
LinuxLinux5.4.279 <= 5.4.*unaffected
LinuxLinux5.10.221 <= 5.10.*unaffected
LinuxLinux5.15.162 <= 5.15.*unaffected
LinuxLinux6.1.96 <= 6.1.*unaffected
LinuxLinux6.6.36 <= 6.6.*unaffected
LinuxLinux6.9.7 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References